Latch and lock combined



(No Model.)

A. LINSMAYER. LATCH AND LOOK COMBINED.

Patented Nov. 14, 1893.

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' WASHINGTON n c @ttomug 'UNITED STATES PATENT OFFICE.

AUGUST LINSMAYER, OF DAYTON, OHIO.

LATCH AND LOCK COMBINED.

SPECIFICATION forming part of Letters Patent No. 508,890, dated November 14, 1893. Application filed February 21, 1893. Serial No. 463,148- (No model.)

To all whom it may concern.- 7

Be it known that I, AUGUST LINSMAYER', a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in a Combined Look and Latch; andI do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Myinvention relates to an improvement in combined locks and latches and itconsists in the construction 'and arrangement of parts hereinafter described and definitely pointed out in the claim.

The aim and purpose of the invention is to provide a simple,inexpensive and accurately operating combined lock and latch for doors adapted to be either inlaid or-secured externally. I attain these obj eots by the construction illustrated in the accompanying drawings wherein like letters of reference indicate corresponding parts and in which Figure 1 is an elevation of the device with the side removed, showing the bolt withdrawn and the latch locked out. Fig. 2 is a similar view with the parts in the opposite position. Fig. 3 is a detail view of the stationary abutments and caps. Fig. 4 is a detail perspective view of the dog, and Fig. 5 is a detail view of the bolt.

In the drawingsA represents the casing; B the latch having the frame B on its rear formed with the inwardly extending lugs b.

O is the tumbler having the usual squared central aperture and wings c engaging the lugs b. Onthe shank O of the latch is'the catch 0 forminga shoulder 0 against which the grooved head 0 of the spring rod 0 abuts as shown in Fig. 1. This rod 0 has a coiled spring 0 thereon which abuts against the head a at one end and against the fixed saddle O at the other end. The saddle has a U-shaped groove therein through which the rod (3 passes, and is held in place by the curved cap spring with ease.

the latch may be removed to reverse the inclination of the catch.

At the center of the casing is a stop block D, having "a recess (1 in which a post d is formed on which the friction spring is sleeved. This spring engages the cap plate of the lock and holds the block in its adjusted position.

The block-D has a thumb piece 61 extending out through the usual elongated slot 111 the end of the casing so that the block may be forced up in between the end of thelatch and rear of the casing, to hold the latch against withdrawal. the block in place. i

The locking bolt E which I employ 1S of the reciprocating pattern having the key groove e in its under edge. It is held in its proper position by having an elongatedslot e formed therein in which a fixed lug e engages limiting and guiding the bolt in its movement. To prevent the forcing back of the bolt by means other than a key,"I employ a pivotal dog F differing to analogous devices in its s1mpl1city and adaptability to replacement of the The dog F is formedwith an eye f at its forward end the fiat shank f extending out from the under side of the eye andformed with the apron or flange F on 1ts under edge at one side of the center thereof so as to rest on the side of the bolt, over the key groove. At the end of the shank f 1s the tooth f which is arranged to engage 1n the notches g, g of the bolt. To strengthen the shank f at its connection with the eye a rib f is formed thereon.

7 At a point midway the length of the shank is formed an integral cylindrical pin G extending upwardly and curved slightly forward in an are having the pivot pin H, on which is placed the eye, as its center. The outer end of this pin passes through an abutment H formed on the casing slightly inclined from the horizontal. This abutment A lug D on the casing-holdshas a U-shaped groove in its'edge in which 5 The Wing of the key lifts the dog up against ing over the reciprocating bolt and the key the tension of the spring carrying the tooth groove, a tooth at the rear of said shank ar- 20 of the dog outof the notchg and allowing the ranged to engage the notches in the bolt and bolt to be forced out. The tooth then falls a curved cylindrical pin on the top of the 5 into the notch g and prevents the forcing in shank, an abutment on the casing having a of the bolt by pressure on its protruding end. U-shaped groove thereon through which the I am aware that dogs of somewhat similar pin passes,a spiral spring on the pin resting 25 construction have been employed. between the shank and abutment andacap on 'Having thus described my invention,what the casing having an extension entering said 10 I claim as new, and desire to secure by Letters groove and resting on the pin, substantially Patent, is V as described.

In a combined lock and latch, the combina- In testimony whereof I affix my signature in 30 tion with the casing and a reciprocating bolt, presence of two witnesses. having notches on its upper edge, of a key AUGUST LINSMAYER.

r 5 groove, a projection on the forward end of the casing, a dog pivoted at its forward end WVitnesses: on said projection consisting of a shank, a OTTO. B. FRANK, side flange on the side of said shank extend- JOHN L. H. FRANK. 

